OpenZFS on Linux and FreeBSD
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Brian Behlendorf 61f3638a34 Add prefetch property
ZFS prefetch is currently governed by the zfs_prefetch_disable
tunable. However, this is a module-wide settings - if a specific
dataset benefits from prefetch, while others have issue with it,
an optimal solution does not exists.

This commit introduce the "prefetch" tri-state property, which enable
granular control (at dataset/volume level) for prefetching.

This patch does not remove the zfs_prefetch_disable, which remains
a system-wide switch for enable/disable prefetch. However, to avoid
duplication, it would be preferable to deprecate and then remove
the module tunable.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Ameer Hamza <ahamza@ixsystems.com>
Signed-off-by: Gionatan Danti <g.danti@assyoma.it>
Co-authored-by: Gionatan Danti <g.danti@assyoma.it>
Closes #15237 
Closes #15436
2024-04-30 10:01:15 -07:00
.github Move nodes into correct subgraphs 2024-01-29 14:53:29 -08:00
cmd vdev probe to slow disk can stall mmp write checker 2024-04-30 10:01:15 -07:00
config Python 3.12 deprecated python3-distutils 2024-04-29 13:50:05 -07:00
contrib Python 3.12 deprecated python3-distutils 2024-04-29 13:50:05 -07:00
etc etc/init.d: decide which variant to use at build time. 2024-04-22 09:28:06 -07:00
include Add prefetch property 2024-04-30 10:01:15 -07:00
lib Add prefetch property 2024-04-30 10:01:15 -07:00
man Add prefetch property 2024-04-30 10:01:15 -07:00
module Add prefetch property 2024-04-30 10:01:15 -07:00
rpm zfs-kmod: fix empty rpm requires/conflicts 2024-04-29 13:50:05 -07:00
scripts Add zfs_prepare_disk script for disk firmware install 2023-11-06 16:45:07 -08:00
tests vdev probe to slow disk can stall mmp write checker 2024-04-30 10:01:15 -07:00
udev udev: correctly handle partition #16 and later 2024-04-22 09:23:23 -07:00
.cirrus.yml CI: add FreeBSD build with Cirrus CI 2023-10-07 09:08:20 -07:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore Packaging: Auto-generate changelog during configure (#15528) 2023-11-16 14:23:03 -08:00
.gitmodules .gitmodules: link to openzfs github repository 2021-04-12 09:37:23 -07:00
.mailmap AUTHORS: refresh with recent new contributors 2024-04-29 13:50:05 -07:00
AUTHORS AUTHORS: refresh with recent new contributors 2024-04-29 13:50:05 -07:00
CODE_OF_CONDUCT.md Documentation corrections 2022-12-22 11:34:28 -08:00
COPYRIGHT Fix typos 2020-06-09 21:24:09 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
META Linux 6.8 compat: META (#16099) 2024-04-22 09:23:23 -07:00
Makefile.am Process `script` directory for all configs 2022-10-27 16:45:14 -07:00
NEWS Fix NEWS file 2020-08-26 21:44:41 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md FreeBSD: Fix the build on FreeBSD 12 2023-11-28 15:19:07 -08:00
RELEASES.md Add RELEASES.md file 2021-04-02 16:33:40 -07:00
TEST Remove CI builder customization from TEST 2020-03-16 10:46:03 -07:00
autogen.sh Ubuntu 22.04 integration: ShellCheck 2022-11-18 11:24:48 -08:00
configure.ac Packaging: Auto-generate changelog during configure (#15528) 2023-11-16 14:23:03 -08:00
copy-builtin copy-builtin: add hooks with sed/>> 2022-05-10 10:17:43 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.md

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OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.

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Official Resources

Installation

Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.

Contribute & Develop

We have a separate document with contribution guidelines.

We have a Code of Conduct.

Release

OpenZFS is released under a CDDL license. For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197

Supported Kernels

  • The META file contains the officially recognized supported Linux kernel versions.
  • Supported FreeBSD versions are any supported branches and releases starting from 12.4-RELEASE.